Trend trader is based on 4 moving averages: two fast moving averages and two slow moving averages. Once the fast moving averages cross the slow ones to the upside, you get your buy signal displayed on your indicator as well as on the main chart. If the fast moving averages cross below the slow MAs, you get your sell signal.
The system does not repaint. No need to sit in front of your computer. The indicator notifies you of buy and sell signals. It works on all time frames as well on any pair that you would like to trade.